JimIII@jdm
Well-Known Member
Yesterday we retested our 2015 Mustang shop car on our dyno with the addition of Kooks Headers and Exhaust Full Exhaust kit for the 2015-2016 Mustang GT.
The fit and finish on this kit is second to none. We have done quite a few exhaust installs on 2015+ Mustangs and this is by far one of the best fitting kits we have worked with especially the cat-back section.
Results:
The Kooks headers and Green cats picked up about 13WHP at peak and a huge bump of 25+WTQ in the low end. This is pretty much what we had expected. Since our car was last tested with the Magnaflow Cat-Back we can assume that was worth about 10 WHP. In short, a full exhaust system is going to be worth on average 25-30WHP with big gains in torque at the hit of the throttle. This was all done on the same tune used during our GT350 manifold test. No changes.
The fit and finish on this kit is second to none. We have done quite a few exhaust installs on 2015+ Mustangs and this is by far one of the best fitting kits we have worked with especially the cat-back section.
Results:
The Kooks headers and Green cats picked up about 13WHP at peak and a huge bump of 25+WTQ in the low end. This is pretty much what we had expected. Since our car was last tested with the Magnaflow Cat-Back we can assume that was worth about 10 WHP. In short, a full exhaust system is going to be worth on average 25-30WHP with big gains in torque at the hit of the throttle. This was all done on the same tune used during our GT350 manifold test. No changes.
Last edited: